There is a reason they are pulled by a horse... :-D
These Gypsy caravan home-builts were getting some interest a few years ago, with plans available on the Internet. My brother followed one into a campground in Banff National Park last year. By the time the poor guy got it up the (rough) road and into a spot - the road had pretty well shaken it apart.
The thing sort of collapsed backwards into a pile of parts. :twisted: